Preliminary W78E378/W78C378/W78C374
1/FdummyH
Hsync width
Hdummy
Vdummy
.....
.....
.....
.....
.....
.....
Vsync width
1/FdummyV
For Fosc = 10 MHz:
(HDUMS1,
HDUMS0)
(0, 1)
(1, 0)
52.083 KHz
(0, 0)
(1, 1)
dummyH
F
78.125 KHz
39.063 KHz
31.250 KHz
Hsync width
VDUMS
m
1.6 S
m
2.4 S
m
3.2 S
m
4.0 S
0
1
0
1
0
1
0
1
152.6 Hz
76.3 Hz 101.7 Hz 50.9 Hz 76.3 Hz 38.1 Hz 61.0 Hz 30.5 Hz
dummyV
F
H-clamp Pulse Generator
1. Leading edge/Trailing edge selectable.
* HCES = 0: select leading edge
* HCES = 1: select trailing edge
Negative polarity Hsync
Hsync
Postive polarity Hsync
Hsync
Hclamp
Hclamp
(Leading-edge)
(Leading-edge)
Hclamp
(Trailing-edge)
Hclamp
(Trailing-edge)
- 28 -
WINBOND [ WINBOND ]
